55021386484 has 12 divisors (see below), whose sum is σ = 96289092900. Its totient is φ = 27510217088.

The previous prime is 55021386473. The next prime is 55021386509. The reversal of 55021386484 is 48468312055.

It can be written as a sum of positive squares in 2 ways, for example, as 1024640100 + 53996746384 = 32010^2 + 232372^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324972 + ... + 464380.

It is an arithmetic number, because the mean of its divisors is an integer number (8024091075).

Almost surely, 2^55021386484 is an apocalyptic number.

It is an amenable number.

55021386484 is a deficient number, since it is larger than the sum of its proper divisors (41267706416).

55021386484 is a wasteful number, since it uses less digits than its factorization.

55021386484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238082 (or 238080 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 46.

The spelling of 55021386484 in words is "fifty-five billion, twenty-one million, three hundred eighty-six thousand, four hundred eighty-four".